We have a 14 month old male Basenji (Charlie) and we recently added a 10 week old female Basenji (Ripley) puppy to our home. Charlie seemed very excited from day 1, but plays very aggressively. They run around the house, but it turns into a wrestling match with him grabbing her neck, leg, you name it. She of course does the same and has started to grab anything of his she can bite onto, but the size difference makes it very scary. She is 13 weeks old now, but we are not sure if we should be worried about him or if this will work itself out where they teach each other when to stop. Any advice or thoughts would be so very helpful.